Doosan Power Systems B Tech Mechanical Engineer Interview Questions and Answers

Questions related to torque, gearbox, torque limiter and coupling failure, yawing system bearing, and accumulator.

• Torque is a measure of rotational force.

• Gearbox works by transmitting power from the engine to the wheels.

• Torque limiter failure can be caused by overloading or overheating.

• Coupling failure can be caused by misalignment or excessive torque.

• Yawing system bearing is a type of roller bearing used to support th...read more

7QC tools are a set of quality control tools used to identify and solve quality problems in manufacturing processes.

• 7QC tools include Pareto chart, cause-and-effect diagram, control chart, histogram, scatter diagram, flowchart, and check sheet.

• They help in identifying and analyzing quality problems, determining root causes, and implementing corrective actions.

• They are used to improve product quality, reduce defects, an...read more

PPAP and APQP are quality management systems used in manufacturing.

• PPAP stands for Production Part Approval Process and is used to ensure that manufactured parts meet customer requirements.

• APQP stands for Advanced Product Quality Planning and is used to plan and manage the design and development of new products.

• Both systems are commonly used in the automotive industry but can be applied to other manufacturing industrie...read more

Pareto is a principle that states 80% of effects come from 20% of causes.

• Also known as the 80/20 rule

• Used in business to identify the most important factors

• Can be applied to various fields such as economics, engineering, and social sciences

• Example: 80% of a company's profits come from 20% of its customers

OEE can be calculated by multiplying Availability, Performance, and Quality percentages.

• Calculate Availability by dividing Operating Time by Planned Production Time.

• Calculate Performance by dividing Actual Production by Maximum Production.

• Calculate Quality by dividing Good Units by Total Units Produced.

• Multiply Availability, Performance, and Quality percentages to get OEE.